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Underwater production facility virtual assembly method

A virtual assembly and facility technology, applied in the field of virtual assembly, can solve the problems of single path, too many paths, and the optimal selection of different paths, etc., to achieve the effect of simple operation, simple assembly operation, and convenient assembly process.

Active Publication Date: 2015-03-25
CHINA NAT OFFSHORE OIL CORP +2
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are few studies on the virtual assembly technology of the components of underwater production facilities. The current virtual assembly technology requires too much human-computer interaction, the path is single, and it is impossible to choose the best path through different paths.

Method used

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  • Underwater production facility virtual assembly method

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Experimental program
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Embodiment 1

[0049] (1) Establish relational database and track database based on Pro / E secondary development technology;

[0050] The establishment method of the relational database is as follows: split the assembly sequence and process of the assembly to form multi-level sub-assemblies and parts, establish an assembly structure tree, and enter the obtained assembly cooperation relationship and part attributes and identification into the relational database middle;

[0051] The method for establishing the trajectory database is as follows: multiple assembly displacement paths are set between the subassembly to be assembled and the parts; the path of method 1 is to move between the subassembly to be assembled and the parts at a right angle Way. The path of method 2 is to move between the sub-assembly and the part to be assembled along the path of the two-point vector direction from the beginning to the end. Method 3 is the obstacle avoidance method.

[0052] (2) Import the sub-assembly ...

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Abstract

The invention discloses an underwater production facility virtual assembly method. The underwater production facility virtual assembly method includes the following steps: (1) building a relational data base and a track data base based on the Pro / E secondary development technology; (2) leading in a to-be-assembled sub-assembly body and part model, and conducting position and pose transformation on parts to be assembled through the cooperative relationship between to-be-assembled sub-assembly bodies and the parts in the built relational data base and attributes and identification of the parts until the parts can reach the sub-assembly bodies only through transverse movement; (3) visiting the track data base, selecting to determine the shortest assembly track in multiple assembly paths through the track data base, and outputting track files between the sub-assembly bodies and the parts; (4) assembling the to-be-assembled sub-assembly bodies and the parts according to the output track files; (5) repeatedly executing the step (2), the step (3) and the step (4) until assembling of the assembly bodies is completed. By means of the method, the assembly validity and the assembly accuracy are improved.

Description

technical field [0001] The invention relates to a virtual assembly method, in particular to a virtual assembly method for underwater production facilities with trajectory optimization. Background technique [0002] With the increasing shortage of resources and energy on land, the development of deep-sea oil has attracted people's attention. As an essential oil extraction equipment, underwater production facilities have the characteristics of various types, large volume, high cost and high installation accuracy. Therefore, the mass production of components of underwater production facilities is inseparable from virtual assembly technology. Through the virtual assembly technology, the reasonable motion sequence and path can be planned, which can provide reference and reference for actual engineering. [0003] Virtual assembly trajectory planning is a planning method based on modeling and sequence planning, using the obtained assembly information to analyze, judge, solve and g...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 史佑田明杰张育坤章青李欣刘斌片成荣李伟张念涛吴楠
Owner CHINA NAT OFFSHORE OIL CORP
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